Which statement about RAM is true?

• A. RAM is slower than a hard drive.
• B. RAM is fast and volatile, data lost on power-off.
• C. RAM is non-volatile.
• D. RAM stores the OS boot files.

Answer: (B)

RAM is fast, volatile memory that holds data the CPU needs right now. Because it’s volatile, its contents vanish when power is removed, so it’s great for quick access and temporary storage but not for long-term persistence. That’s why the correct statement describes RAM as fast and volatile, with data lost on power-off. The other ideas don’t fit: RAM isn’t slower than a hard drive—it’s typically much faster; it is not non-volatile, since it loses data when power is cut; and OS boot files live on non-volatile storage like a disk, not in RAM as their permanent home (though the OS runs from RAM after being loaded).